Introduction to Subaru WRX Key Fob Battery Replacement
Replacing the battery in your Subaru WRX key fob is a simple task that you can easily do yourself. This guide covers the models from 2015 to 2019. All you need is a CR1620 coin battery and a flathead screwdriver.
In this step-by-step tutorial, I’ll walk you through the process of opening up your key fob, replacing the battery, and reassembling it. Let’s get started.
- LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
- LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored
Required Tools and Materials
Before you begin, make sure you have the following items:
- CR1620 coin battery
- Flathead screwdriver
You can purchase the CR1620 battery online for a few dollars. I’ve provided a link to the battery on Amazon for your convenience.
Step 1: Locate the Slot for the Screwdriver
First, hold your key fob and look at the area where the key ring attaches. You’ll notice a small slot along the seam of the plastic. This is where you’ll insert your flathead screwdriver.
Insert the screwdriver into the slot and gently turn it to start opening the device. You should see the key fob begin to separate.
Step 2: Open the Key Fob
Once you’ve started to open the key fob, continue twisting the screwdriver in the slot until the back piece comes off. Set this piece aside.
Next, dump out the internal component that contains the buttons. Inside, you’ll see the battery.
Step 3: Remove the Battery
The battery is held in place by small pieces of plastic. Use the same flathead screwdriver to gently pry these pieces apart. Start by inserting the corner of the screwdriver under the battery and lifting it up.
Be careful not to apply too much force. The battery should come out easily once you’ve pried open the plastic pieces.
Step 4: Insert the New Battery
Take your new CR1620 battery and ensure the positive side (the side with text) is facing down. Press the battery into place.
Make sure the battery is securely in position before proceeding to the next step.
Step 5: Reassemble the Key Fob
Now that the new battery is in place, it’s time to reassemble the key fob. Start by clicking the internal component back into the outer casing.
Next, place the back piece of the key fob onto the device and press it until it clicks securely into place.
Double-check to ensure everything is secure and that the key fob is functioning properly.
- LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
- LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored
Conclusion
And that’s it! You’ve successfully replaced the battery in your Subaru WRX key fob. This straightforward process can save you time and money compared to visiting a dealership.
If you found this guide helpful, feel free to let me know in the comments. For more tutorials on changing key fob batteries for various makes and models, check out our other videos on YouTube or visit our website.
FAQs
What type of battery does the Subaru WRX key fob use?
The Subaru WRX key fob uses a CR1620 coin battery.
What tools do I need to replace the key fob battery?
You only need a flathead screwdriver and a new CR1620 battery.
How long does the replacement process take?
The entire process takes about 5-10 minutes.
Do I need to reprogram the key fob after replacing the battery?
No, you do not need to reprogram the key fob after replacing the battery.
Can I use a different type of battery?
No, you should use the specified CR1620 battery for proper functionality.
Where can I buy a CR1620 battery?
You can purchase a CR1620 battery online. I’ve provided a link to buy it on Amazon.
- LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
- LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored
What should I do if my key fob doesn’t work after replacing the battery?
Ensure the battery is installed correctly with the positive side facing down. If it still doesn’t work, consider replacing the battery with a new one.
Is this process the same for all Subaru WRX models?
This guide covers Subaru WRX models from 2015 to 2019. Other models may have different key fob designs.